CN101544447B - Technique for purifying organic sewage through bio-precipitation and purification method - Google Patents
Technique for purifying organic sewage through bio-precipitation and purification method Download PDFInfo
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- CN101544447B CN101544447B CN2009100591763A CN200910059176A CN101544447B CN 101544447 B CN101544447 B CN 101544447B CN 2009100591763 A CN2009100591763 A CN 2009100591763A CN 200910059176 A CN200910059176 A CN 200910059176A CN 101544447 B CN101544447 B CN 101544447B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
- Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention relates to a technique for purifying organic sewage through a biological deposition and purification method, which belongs to the field of wastewater purification. The bio-precipitation and purification method refers to a bio-flocculation precipitation and purification method. The method draws the advantages of a physical-chemical method, a biochemical treatment process and an artificial wetland at present for organic sewage treatment, and comprises the steps of precipitation sand removal, flocculation precipitation, bio-precipitation and purification, marsh gas tank fermentation and production of tank sludge earthworms. In an ecological system of bio-flocculation precipitation and purification, the sewage is changed into clean water silently without noises of machines, bad smells, and a person appointed to watch over; besides, the system generates fish-farming income and aquaculture vegetable income, the marsh gas is an energy source, and the earthworms are feedstuffs or traditional Chinese medicinal materials. The technique has the advantages of less investment, simplicity, easy operation, power saving and labor saving; the sewage water is purified, and the yielding water reaches the national first-class discharging standard and can be used circularly; besides, the running of a sewage disposal plant can generate economic benefit, and the technique is applicable to purifying nontoxic organic sewage, farm sewage, domestic sewage and urban sewage.
Description
Affiliated technical field
The present invention relates to technique for purifying organic sewage through bio-precipitation and purification method, belong to the purification of waste water field.Biological heavy clean method is the method that the biofloculation precipitation purifies.This method has been drawn the advantage of physico-chemical process, biochemical processing process and the artificial swamp of present organic sewage processing.Biological heavy clean method is handled the organic sewage step: and precipitation removes sand → and flocculation sediment → biology be only heavy → fen fermentation → pond mud earthworm.This method investment is little, simple, hold operation, power saving, laborsaving, can purify organic sewage, water outlet reach national grade one discharge standard, can cycling use of water.Can realize that the operation of organic sewage treatment plant produces economic benefit, be applicable to purify nontoxic organic sewage, plant's sewage, sanitary sewage, municipal effluent.
Background technology
It is the hang-up of face of mankind nowadays that water pollutes, and various places are expended huge fund and built panoramic sewage work, however water pollution problem and unresolved.Present water pollution is based on Organic pollutants, and the treatment process of sewage mainly is biochemical processing process and artificial swamp, comprises conventional activated sludge process, contact oxidation method, oxidation ditch process, AB method and SBR method etc.
Biochemical processing process has the whole bag of tricks, but the anaerobism---aerobic generation active sludge that combines, and this basic skills does not become.Machine thunders around the clock, and the aeration exhaust is successive, is the feature of Sewage Plant.Noise, foul smell form new pollution, and sludge disposal is troubling especially.Power failure, sewage PH value great change, sewage quantity increase suddenly, all are the extinctions of active sludge.Artificial post 24 hours every days, will heat winter to active sludge.Loaded down with trivial details management, high running cost, enterprise can't bear the heavy load, stealthily just rascal's act of sewage effluent.
The running cost of sewage work of the Starch Production enterprise monobasic that surpasses per ton.0.367 yuan/ton of the running cost average out to of National urban sewage work, tens billion of tons of municipal effluents of China's processing in 08 year, only the running cost expense is just above 10,000,000,000 yuan.Now the design and construction of China municipal sewage plant is mainly considered just removes COD, BOD pollutent, and the ratio that the sanitary sewage of denitrogenation dephosphorization treatment accounts for municipal sewage treatment is also very low.Here it is, and present water pollution problem does not have the basic reason of solution.
Artificial swamp compare with traditional sewage treatment have capital construction, working cost is low, removes advantages such as COD, BOD pollutent, denitrogenation dephosphorization be thorough, can thoroughly solve water pollution problem.Shortcomings such as yet floor space is too big, north of china in winter can not move, for the most areas of the China that has a large population and a few land, artificial swamp can only be the moon, Jing Zhonghua in the water.
Biological heavy clean method can change above-mentioned passive situation, and " dirt " progressively separated from water, and mud is by the methane-generating pit special disposal.In the ecosystem that the biofloculation precipitation purifies, the quiet clear water that become of sewage.Do not have set noise, do not have foul smell, need not the special messenger guard, the income of breeding fish in addition, water planting vegetables income.Herba Eichhorniae can be cooked earthworm feedstuff, and biogas is the energy, and earthworm is cooked food, Chinese medicinal materials or feed, and sewage has become money tree.Adopt the normal operation of sewage work of this technology can produce economic benefit, be applicable to purify nontoxic organic sewage, plant's sewage, sanitary sewage, municipal effluent etc.
Technical scheme
The present invention relates to biological heavy clean method and purify organic sewage by following steps: precipitation removes sand → and flocculation sediment → biology be only heavy → fen fermentation → pond mud earthworm.It is characterized in that organic sewage enters methane-generating pit fermentation → methane-generating pit mud and sedimentation basin silt raising earthworm through precipitate and separate silt and macrobead foreign material → biofloculation precipitate and separate mud → plant, animal and microbially decontaminate sewage → mud.
1. precipitation is removed sand that to be organic sewage enter in three mouthfuls of parallel-series sedimentation basins precipitation is removed silt and particle foreign material after grid and strainer are removed foreign material.Realize silt and particle foreign material and water sepn.Sedimentation basin silt, remove every day.Earthworm is raised in silt and the fermentation of particle foreign material.The foreign organic matter of grid and strainer interception is removed at any time, send the methane-generating pit fermentation and biogas production.Retention time of sewage
～11 hours.The sedimentation basin water surface is floating plants Herba Eichhorniae, water-white dish, and adding an amount of natural pond liquid has the flocculation sediment effect, and promotes Herba Eichhorniae, the growth of water-white dish.
2. flocculation sediment is that waste water is removed mud by natural pond liquid, flocculation agent, EM+ microbial flocculant flocculation sediment in settling tank, and 98% SS, 95% COD are flocculated, and precipitates, and realizes " dirt " and water sepn.The mud of one-level settling tank was removed once in 1～2 day; The mud of second-level settling pond was removed once in per 5 days.Adopt machinery to scrape mud, slush pump is removed mud.The water surface is floating plants vegetables, and Herba Eichhorniae, water-white dish are standby emergent.Retention time of sewage 60～90 hours.
3. biological sinking is to utilize plant, animal and microorganism to purify waste water in heavy clean pond only.The mud in the heavy clean pond of one-level was removed once in 20～30 days; The mud in the heavy clean pond of secondary was removed once in 50～60 days.The water surface is floating plants vegetables, breeds fish in the water.Retention time of sewage 7～12 days.Water outlet can reach national grade one discharge standard.Can cycling use of water.
4. the fen fermentation is that mud in settling tank, the heavy clean pond and the organic waste that all can produce biogas are put into the methane-generating pit fermentation and biogas production.
5. mud earthworm in pond is to raise earthworm with silt in the sedimentation basin and residue fermentation; Natural pond liquid is removed in the worry of methane-generating pit mud, mixes with the broken Herba Eichhorniae of drying in the sun, water-white dish and raises earthworm.The remaining earthworm excrement of results earthworm is the high-quality fertilizer material.
Embodiment
Biological heavy clean method is handled the step of organic sewage: and precipitation removes sand → and flocculation sediment → biology be only heavy → fen fermentation → pond mud earthworm.
Embodiment one, the village sewage (60～70t/ days) that biological heavy clean method purifying pig-raising is ten thousand.
The village of raising pigs has 50 to raise on a household basis the pig family, and average each household is raised pigs 200, raises pigs ten thousand altogether.Pig manure send organic fertilizer source mill, and the sanitary sewage in urine, flushing pigsty sewage, full village always has 60～70t every day, enters sewage work.
1, precipitation is removed sand.Sewage enters sedimentation basin after grid and strainer are removed foreign material.Precipitation is removed silt and ight soil residue in three mouthfuls of parallel-series sedimentation basins of 2 * 3 * 1.5m.The water surface is floating plants Herba Eichhorniae, water-white dish, and adding an amount of natural pond liquid has the flocculation sediment effect, and promotes Herba Eichhorniae, the growth of water-white dish.Retention time of sewage 9～11 hours.Silt in the sedimentation basin and ight soil residue are removed every day, and earthworm is raised in fermentation.The foreign material classification that grid and strainer stop is handled: plant and animal residues is put into the methane-generating pit fermentation and biogas production; Plastics, metal, rubber item send the salvage station; Fragment of brick, rubble, clod, stone individual curing.
2, flocculation sediment.The waste water that comes out from sedimentation basin flows into the total area 80～90m
2, two mouthfuls of settling tanks of the depth of water 1.5～3m (average 2.5m) purify more than 3 days.By natural pond liquid, flocculation agent, the flocculation of EM+ microbial flocculant, precipitation is removed mud to waste water in settling tank, and 98% SS, 95% COD are by flocculation sediment; 90% nitrogen, phosphorus are absorbed and remove by the floating Herba Eichhorniae, water-white dish, vegetables of planting of the water surface.The mud of one-level settling tank was removed once in 1～2 day; The mud of second-level settling pond was removed once in per 5 days.Adopt machinery to scrape mud, slush pump is removed mud, and mud send methane-generating pit.The water surface is floating plants Herba Eichhorniae, water-white dish, vegetables: winter Wildcelery Herb, green water cress, summer Herba Commelinae Bengalensis, Herba Eichhorniae, water-white dish are standby emergent.Retention time of sewage 80～90 hours.
3, biological heavy clean.The waste water of post precipitation purifies 10～12 days in heavy clean pond.Heavy clean pond water surface 300m
2, the depth of water 1.5～3.0m (average 2.5m).One-level is sunk clean pond 140m
2, purify 5～6 days.Water outlet reaches national secondary discharge standard.Secondary sinks clean pond 160m
2, purifying 5.5～6.5 days, water outlet can reach national grade one discharge standard, can cycling use of water.The mud in the heavy clean pond of one-level was removed once in 20～30 days; The mud in the heavy clean pond of secondary was removed once in 50～60 days.The water surface is floating plants vegetables, breeds fish in the water.The feed of not throwing something and feeding of breeding fish; Floating Wildcelery Herb, the green water cress of planting of the water surface, Herba Commelinae Bengalensis, only foliage-spray natural pond liquid at the appropriate time can reach the pollution-free food standard.
4, fen fermentation is that mud in settling tank, the heavy clean pond and all organic wastes are put into the methane-generating pit fermentation and biogas production.Mud 0.5～the 0.7m of average generation every day in heavy clean pond
3Can produce methane-generating pit mud 0.3m after entering the methane-generating pit fermentation
3, natural pond liquid 0.4m
3Natural pond liquid is used for on-site greening fertilising or the floating leaf dressing of planting vegetables of the water surface, and residue natural pond liquid adds sedimentation basin and one-level settling tank, and a lot of materials in the liquid of natural pond can play the flocculation sediment effect.
5, pond mud earthworm.Earthworm is raised in silt in the sedimentation basin and the fermentation of ight soil residue; The 0.3m that produce average every day
3Mud is considered and is removed natural pond liquid, mixes with the broken Herba Eichhorniae of drying in the sun, water-white dish and raises earthworm.This method is raised earthworm can reach the pollution-free food standard, can be acat, also can dry and do Chinese medicinal materials.The remaining earthworm excrement of results earthworm is the high-quality fertilizer material, is sent to organic fertilizer source mill.
Sedimentation basin, settling tank, heavy clean pond total area 400m
2About, suitable with the common sewage work area of equal scale; Investment only is 20～40% of a common sewage work, and normal operation can produce income.
Daily administration is very simple, only needs a people, works every day 4～6 hours.Machinery equipment: mud scraper, slush pump, simple, easy to operate, power saving, laborsaving.
Embodiment two, and biological heavy clean method purifies waste water produced in potato starch manufacturing (100t potato/sky).
This project is improved the water of productive use method, and water of productive use recycles.Starch separates waste water, potato wash heat to be washed waste water, production unit to scrub waste water all is that post precipitation is reused with the potato slag, or is used for flushing and carries potato.The last waste water recycling that cleans of potato is carried potato.The waste water bubble end that can not utilize again is many, is used to wash potato.Have only flushing waste water to be only the waste water of final discharge, produce water consumption 0.7～1t/t, the waste water 70～100t/ of discharge days.
1, precipitation is removed sand.After water of productive use recycled, 80% above potato wash-down water was from the precipitation clear liquid in the production process.Produce flushing waste water 70～100m every day
3, be final waste water of discharging.Waste water enters sedimentation basin after grid and strainer are removed foreign material such as potato skin.Precipitation is removed silt, retention time of sewage 6～7 hours in three mouthfuls of parallel-series sedimentation basins of 2 * 3 * 1.5m.The water surface is floating plants Herba Eichhorniae, water-white dish, and adding an amount of natural pond liquid has the flocculation sediment effect, and promotes Herba Eichhorniae, the growth of water-white dish.Contain rot potato residue, scurf and a large amount of vinelandii (root nodule bacterium) in the silt of sedimentation basin.Silt is removed every day, and earthworm is raised in fermentation.Foreign material such as potato skin are removed at any time, put into the methane-generating pit fermentation and biogas production.
2, flocculation sediment.The waste water that comes out from sedimentation basin flows into the total area 80～90m
2, two mouthfuls of settling tanks of the depth of water 1.5～3m (average 2.5m) purify more than 2 days.Waste water is removed mud by natural pond liquid, flocculation agent, EM+ microbial flocculant flocculation sediment in settling tank, 98% SS, 95% COD are by flocculation sediment.The mud of one-level settling tank was removed once in 1～2 day; The mud of second-level settling pond was removed once in per 5 days.Adopt machinery to scrape mud, slush pump is removed mud, and mud send methane-generating pit.The water surface is floating plants Herba Eichhorniae, vegetables: winter Wildcelery Herb, green water cress, summer Herba Commelinae Bengalensis, Herba Eichhorniae, water-white dish are standby emergent.Retention time of sewage 70～80 hours.
3, biological heavy clean.The waste water of post precipitation purifies 7～8 days in heavy clean pond.Heavy clean pond water surface 300m
2, the depth of water 1.5～3.0m (average 2.5m).One-level is sunk clean pond 140m
2, purify 3～4 days.Water outlet reaches national secondary discharge standard.Secondary sinks clean pond 160m
2, purifying 4～5 days, the water surface is floating plants vegetables, breeds fish in the water.The feed of not throwing something and feeding of breeding fish; Floating Wildcelery Herb, the green water cress of planting of the water surface, Herba Commelinae Bengalensis, only foliage-spray natural pond liquid at the appropriate time can reach green food standard.Water outlet can reach national grade one discharge standard, can cycling use of water.
4, fen fermentation is that mud in settling tank, the heavy clean pond and all organic wastes are put into the methane-generating pit fermentation and biogas production.Mud 0.3～0.5m that produce average every day
30.4～0.5t such as foreign material such as potato skin, domestic refuse, feces of toilet enter and can produce mud 0.3m after methane-generating pit ferments
3, natural pond liquid 0.5m
3Natural pond liquid is used for on-site greening fertilising or the floating leaf dressing of planting vegetables of the water surface, and residue natural pond liquid adds sedimentation basin and one-level settling tank, and a lot of materials in the liquid of natural pond can play the flocculation sediment effect.
5, pond mud earthworm.Contain rot potato residue, scurf and a large amount of vinelandii (root nodule bacterium) in the silt of sedimentation basin removing every day, earthworm is raised in fermentation; The 0.3m that produce average every day
3Mud is considered and is removed natural pond liquid, mixes with the broken Herba Eichhorniae of drying in the sun, water-white dish and raises earthworm.This method is raised earthworm can reach the green food requirement, can be acat, also can dry and do Chinese medicinal materials.The remaining earthworm excrement of results earthworm is a fine potato organic fertilizer, transports back and plants potato by transporting peasant household that potato comes factory.
Sedimentation basin, settling tank, heavy clean pond total area 400m
2About, suitable with the common sewage work area of equal scale; Investment only is 20～40% of a common sewage work, and normal operation can produce income.
Daily administration is very simple, only needs a people, works every day 4～5 hours.Machinery equipment: mud scraper, slush pump, simple, easy to operate, power saving, laborsaving.
Production technology of the present invention is succinctly reasonable, the technology smoothness is invested little, simple, easy to operate, power saving, laborsaving, can purify organic sewage, can realize that the operation of organic sewage treatment plant produces economic benefit, be applicable to purify nontoxic organic sewage, plant's sewage, sanitary sewage, municipal effluent.
Claims (1)
1. the method for a purifying organic sewage through bio-precipitation and purification method belongs to the purification of waste water field, and its step comprises: and precipitation removes sand → and flocculation sediment → biology be heavy only → fen fermentation → pond mud earthworm; It is characterized in that organic sewage is through precipitate and separate silt and macrobead foreign material → biofloculation precipitate and separate mud → plant animal with microbially decontaminate sewage → mud enters methane-generating pit fermentation → methane-generating pit mud and sedimentation basin silt is raised earthworm; Flocculation sediment is that waste water is removed mud by natural pond liquid, EM+ microbial flocculant flocculation sediment in settling tank, and 98% SS, 95% COD are flocculated, and precipitates, and realizes " dirt " and water sepn; The mud of one-level settling tank was removed once in 1～2 day; The mud of second-level settling pond was removed once in per 5 days, adopted machinery to scrape mud, and slush pump is removed mud; The water surface floats plants vegetables, and Herba Eichhorniae is standby emergent, retention time of sewage 60～90 hours; Biological sinking is to utilize plant, animal and microorganism to purify waste water in heavy clean pond only, the mud in the heavy clean pond of one-level was removed once in 20～30 days, the mud in the heavy clean pond of secondary was removed once in 50～60 days, floating the planting in vegetables, the water of the water surface breeded fish, retention time of sewage 7～12 days, water outlet can reach national grade one discharge standard, cycling use of water; The fen fermentation is that mud in settling tank, the biological heavy clean pond and the organic waste that all can produce biogas enter the methane-generating pit fermentation and biogas production; Pond mud earthworm is to raise earthworm with silt in the sedimentation basin and residue fermentation, and methane-generating pit mud elimination natural pond liquid mixes the raising earthworm with the broken Herba Eichhorniae of drying in the sun, and the remaining earthworm excrement of results earthworm is the high-quality fertilizer material.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785537A (en) * | 2010-03-19 | 2010-07-28 | 沈阳尊龙生物技术有限公司 | Earthworm feedstuff |
| CN102503018A (en) * | 2010-11-07 | 2012-06-20 | 郑鉴忠 | Method for eliminating organic waste through circulation of fish, vegetable and earthworm |
| CN102524160B (en) * | 2012-01-16 | 2014-08-20 | 中国环境科学研究院 | Water treatment system adopting molecular sieves prepared from flyash of power plants for filtration |
| CN104909900A (en) * | 2015-06-04 | 2015-09-16 | 贵州汇民力生物科技有限公司 | Organic fertilizer and preparation method thereof |
| CN105502802B (en) * | 2015-11-24 | 2019-03-05 | 南京农业大学 | A kind of method of quick treatment scale piggery waste waste water |
| CN105417778B (en) * | 2015-11-26 | 2018-05-25 | 南京贝克特环保科技有限公司 | A kind of method of quick treatment scale cattle farm waste waste water |
| CN105502852B (en) * | 2016-01-22 | 2018-06-19 | 南京贝克特环保科技有限公司 | A kind of method of quick processing garbage burning factory landfill leachate |
| CN106975461A (en) * | 2017-05-15 | 2017-07-25 | 东华理工大学 | A kind of dry powder of water hyacinth adsorbent and adsorption uranium and aftertreatment technology |
| CN107324600A (en) * | 2017-08-15 | 2017-11-07 | 河北卓达建材研究院有限公司 | A kind of vehicle mounted potato sewage disposal system and its processing method |
| CN110921983A (en) * | 2019-11-29 | 2020-03-27 | 成冰冰 | Sewage treatment system of recycling |
| CN115072869B (en) * | 2022-06-14 | 2023-04-11 | 哈尔滨工业大学（深圳） | Method for cultivating plants and reducing earthworm in-situ sludge by utilizing backflow enriched floating mud |
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